韦为¹,耿葵花¹,耿爱农²,马小波¹,何洋¹,赵泰百¹,雷悦¹

• 1:广西大学 机械工程学院，广西 南宁 530004
• 2:五邑大学 机电工程学院，广东 江门 529020

摘要(Abstract)：

针对滚动转子压缩机径向间隙的动压油膜密封出现的微尺度气液两相泄漏流，运用正交试验法设计了动压油膜密封的试验方案，在实验验证的基础上，基于Fluent进行了数值模拟试验，分析各试验参数对气相泄漏量Q和气相击穿时间T影响的显著性。分析结果表明：在正交试验参数变化范围内，对气相泄漏量Q的显著性影响由高至低排序为：径向间隙H、压差P和润滑油黏度μ；对气相击穿时间T的显著性影响由高至低排序为：径向间隙H、润滑油黏度μ和压差P；具体表现为：气相泄漏量Q随着H和P的增大而增大，随着μ的增大而减小；气相击穿时间T都随着H和P的增大而减小，随着μ的增大而增大。根据正交试验分析的结果，给出了气相泄漏量最小的优化参数选择。

关键词(KeyWords)： 气液两相流;数值模拟;压缩机;油膜密封;正交试验

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51565004）；广西制造系统与先进制造技术重点实验室资助项目（15-140-30S001）。

作者(Author): 韦为¹,耿葵花¹,耿爱农²,马小波¹,何洋¹,赵泰百¹,雷悦¹

DOI: 10.3969/j.issn.1003-9015.2018.04.009

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